Awareness Survey on Volcanos for Nagano Prefecture Mountain Guides

Abstract

In this study, we conducted a questionnaire survey on volcanoes among Nagano Prefecture's certified mountain guides to understand the current situation and identify issues related to hazard maps, eruption warning levels, responses to eruption phenomena, and obtaining volcano information. As a result, about half of the guides who guide mountaineers to one or more of the four volcanoes (Mt. Asama, Mt. Yakedake, Mt. Norikura, and Mt. Ontake) do not know the current eruption warning level, and about 30 to 50% of them cannot imagine how to respond to eruptive phenomena. It is indicated that the guides do not have sufficient knowledge of volcanic information and eruption phenomena as guides of active volcanoes, which require appropriate evacuation guidance in an emergency.